Needed something like this with all the fake reviews out there. Tested it on a several Amazon products, incl some I got burned on and suspected fake reviews or pay for 5*. FS rated both the worst ones reviews a B with "minimal deception" and all good on the pay for 5* on totally terrible product (I know b/c I received the offer to change my review, and a few reviews mentioned it, esp on seller). The other bad product said all was fine, but that Amazon modified 74,662 reviews (but there are only 37,957), yet FS said 80% "high quality" reviews. Great on Amazon to remove or w/e 2/3 of the reviews (or does this mean reviewer mods as well?), but how can the other metrics be so good? Also, the Amazon rating on every product I checked was the same as the FS, in one case 5* (riiiight, on 9,384 reviews of a horrible, scam product). So, for my uses, the results and usefulness don't justify the privacy invasion.